A total of over US$253 billion worth of assets is under custody of the eight companies, with the largest custody provider on the list, Coinbase Custody, holding US$90 billion in digital assets in storage. Bitgo , the second on the list, announced on Nov. 15 it had more than $64 billion in assets under custody, having increased by three times since last December. Six out of the eight listed companies are regarded as “regulated custodians,” with the exception of Fireblocks and Ledger Enterprise Solutions, which have respectively completed an SOC 2 type 2 and an SOC 3 type 3 audit. Fireblocks is a special case among the top eight. Being a “crypto custody technology provider,” Fireblocks does not store the assets of its clients, but allows clients to interact and manage their assets with secure software and APIs. Clients of the custody providers are currently primarily crypto exchanges, but institutional audiences are also entering the space, with the Bank of New York Mellon being Fireblock’s client, and NYDIG holding the assets of JPMorgan under its custody.